A FEW MINUTES EARLIER
Arvell lay in a pool of his own blood, twitching in pain.
He had already undergone most of the process of increasing the level of his Nether Body.
In order to be able to upgrade his Nether Body, he needed to train his body to its utmost potential, accumulating enough energy to break through.
While it was possible to do this manually, using elixirs as a crutch was generally an exponentially faster process.
The natural way would have cost Arvell far more time.
Maybe taking another couple of months before he could break through.
And that was the best-case scenario.
Further refining his Nether Body became progressively more arduous of a challenge for Arvell.
Lucky for him, Arvell had a mentor who had extensive knowledge in alchemy, giving him an option to shorten this strenuous process.
Furthermore, with his experience, he could shorten the period of refining his Nether Body from two weeks to just a few hours.
Sorry for the repetitive chapter.
I was trying to make a small portion explaining what happened on Arvell's end, and then I got carried away and ended up writing a full chapter from Arvell's POV.